1. Week 26 Benchmark Review

2. Fill in the chart below:
Substance
Element
Compound
# of atoms O3
Fe3O4
CaCO3 He 3 ✔ ✔ 7 5 ✔ ✔ 1

3. What are 4 properties of non-metals?
Poor Conductor
Low Luster
Brittle
Right side of the zig zag

4. What is a metalloid? -Has properties of both a metal and a non-metal
-Semi conductor of electricity

5. What are 4 properties of a metal?
Good Conductor of electricity
Malleable/Ductile
High Luster
Left side of the zig zag

6. What is the formula for calculating density?
D=m V

7. If the density of water is 1g/mL, will an object that floats on water be more or less dense than water?
Less Dense

8. A rectangular block has a mass of 12g and the sides measure 3cm by 2 cm by 1cm What is the density of the object?
D= m = 12g = 2g/cm
V 6cm

10. Find the density of a marble with a mass of 8g using the picture below:25 5
D= m= 8g = 0.4g/mL
V 20ml

11. Fill in the circle graph to reflect the transformation of kinetic and potential energy.

12. Identify the energy transformation taking place _________  ___________  ________
Chemical
Electrical
Light

13. What energy transformation is Homer going through in the pictures below? _______________  ______________
Chemical
Mechanical

14. What is the energy transformation shown in the picture below
Electrical
Light
Thermal
Mechanical

15. Most Potential = 1&5 Most Kinetic = 3
Where do we have the most potential energy in the picture? Most kinetic energy?
Most Potential = 1&5
Most Kinetic = 3

17. What is the formula for calculating speed?
S= d t

18. If Mandi runs 45m in 5min, what is her average speed?
S= d = 45m = 9m/min
t 5min

19. Samuel ran 50yd in 2min. What is his average speed?
S = d = 50yd = 25 yd/min
t 2min

20. In 3hrs a motorcycle traveled 360mi
In 3hrs a motorcycle traveled 360mi. What is the motorcycle’s average speed?
S = d = 360mi = 120mi/hr
t hrs

21. What was the average speed of Car 1 at 45 seconds?
S= d = 100cm = 2.2cm/sec
t sec

22. What was the speed of car 2 at 120cm?
S= d = 120cm = 2.6 cm/sec
t sec

23. Look at the graphs below: Place them in order from slowest to fastest according to their speed.
D, C, A, B

24. Draw a graph that shows a person who ran at a constant speed for 3 seconds, stops and rests for 4 seconds and then continues on at a constant speed. (label your x and y axis)

25. Draw a picture of a graph that shows a person running at a constant speed:

26. Describe what is happening in the graph below

28. What is a balanced force?
A force that does not cause a change in motion

29. What is an unbalanced force?
A force that causes a change in motion

30. Label the following pictures as either balanced or unbalanced:

31. What is energy from the sun called?
Solar Energy

32. Matter formed by plants and animals that is used as fuel is called _______________.
Biomass

33. ____________ energy comes from the splitting of Uranium atoms to release energy.
Nuclear

34. A resource that we will eventually run out of is ________________.
Non-Renewable

35. Moving air that causes energy is called ______________ energy.
Wind

36. A fossil fuel found deep within Earth that is burned to release energy
Coal

37. Heat energy obtained from deep inside the Earth is called ____________ energy.
Geothermal

38. A resource that we will always have
Renewable

39. Liquid fossil fuel found deep below Earth’s surface that is burned to obtain enery
Oil

40. What are the 5 renewable energy resources?
1)Solar Energy
2) Wind Energy
3) Geothermal
4) Hydropower
5) Biomass

41. What are the 4 non-renewable energy resources?
Coal
Oil
Natural Gas
Nuclear Energy

42. Good luck on your test!!!!! Keep studying :D